Heating apparatus for buildings



(No Model.)

B. N. GATES.

HEATING APPARATUS FOR BUILDINGS.

Patented Nov. 6, 1888.,

UNITED STATES Parana @rrren,

EUGENE N. GATES, OF HOLYOKE, MASSACHUSETTS.

HEATHNG APPARATUS FOR BUlLDlNGS.

$PECIPICATION forming part of Letters Patent No. 392,551, dated November 6', 1888.

Application filed February 21, 1887. Serial No. $128,294. (No model.)

To all whom it may concern.-

Be it known that LEUGENE N. GATES, a citizen of the United States, residing at Holyoke, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Heating Apparatus for Buildings, of which the following is a specification.

This invention relates to improvements in heating apparatus for buildings, and is in the nature of an improvement upon certain of the devices described and shown in my pending application for Letters Patent filed December 7, 1885, Serial No. 184,874, (since patented, No. 359,561, March 15, 1887, which patent will be referred to when the words pending application are used herein;) and the invention consists in the improved arrangement of the heating-pipes, which are located in the furnace, and in the improved manner of making connections between the return-pipe from said radiator or radiators and said heating pipe or pipes, for the purpose of securing economy in heating and sufficient circulation in all parts to avoid freezing, all as hereinafter fully described, and set forth in the claims.

In the drawings forming part of this speci llcation, Figure 2 is a side elevation showing the furnace, partly in section, of a heating apparatus embodying my improvements. Fig. 1 is ahorizonta-l section of a portion of the furnace on the line as :r, Fig. 2, showing the heating-pipes therein in plan view and showing a portion of the return-pipe reservoir connected with two of said pipes,the pipe-connections between other of said heating-pipes and said reservoir being shown broken off.

In Figs. 1 and 2 parts are indicated diagrammatically in dotted lines.

My said pending application shows and describes a furnace for heating apparatus in which is located a series of heating-pipes extending from end to end of the furnace over the fire and having their ends projecting beyond the end walls of the furnace, each one of which pipes has from one end thereof a pipe-connection with one or more radiators in one room or place only of the building,for the purpose, as there described, of confining the heating-power of said pipe exclusively to said room, whereby, as described in said application, a much more direct application of the heat thereto is secured than is obtained when several rooms on the same or different levels are connected with one heat-producing source.

One object of the improvements described and shown in this application is to provide means for connecting more than one pipe with one room or place exclusively, for the pun poses above described, and another object is, as aforesaid, to improve the means of connecting the returnpipc from said room with said heating-pipes, all as hereinafter described.

In the drawings, 3 indicates a furnace of ordinary construction, having a fire-box provided with the grate-bars 15,a bridge-wall,16, and furnace and ash-pit doors 17 and 18.

The heating-pipes 4, which are set in the furnace 3, and their connections are more par ticularly adapted to the use ofhot water as the heat-carrying medium than to steanralthough the latter may be generated thereby and dis tributed to suitable radiators. In this apparatus several of the heatingpipes ehave their delivery ends connected together by the pipeconnections 5, only two of said pipes being shown so connected in the drawings, and to said connections 5, centrally between the two, is attached a delivery-pipe, 6, which conveys the heated water from said several heatingpipes 4 to a suitable radiator or radiators in a room or place in a building, as heretofore set forth, a stop-valve, 9, being placed in said delivery-pipe for the usual purpose.

The object in uniting the delivery ends of several heating-pipes, so that they may have but a single outlet-pipe for all, is to provide the requisite additional heating-surface within the furnace beyond that which a single pipe furnishes by providing several of small diam eter, each containing a comparatively thin body of water, rather than to employ alarger pipe of the united capacity of several smaller ones,the water in saidlargerpipe not being so sensitive to the effects of the furnace fire as that in smaller pipes. As many of said heating-pipes at may be united by their outlet ends to form separate groups in the furnace as the room or space to be warmed by each group may de mand.

The radiator or the several radiators of a room to which the supply-pipe 6,leading from said group of hcating-pipes,is connected has a suitable return-pipe leading therefrom to convey the water back to the heating-pipes, the

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lower end, 12, ofsaid return-pipe being shown in Fig. 2. The lower end of the pipe 12 is also connected with branches 10, and these branches lead by pipes 7 into the upper portion of the horizontal pipes 4. Thelower end ofpipe 12 is also connected to a reservoir, 13, which reservoir is connected with the lower portion of each of the heating-pipes 4 by tubes 8. The reservoir 13 is of considerable capacity and will receive the feed-water should it be necessary to supply feed-water to provide for breakage, &c. The reservoir 18 is connected with all the heating-pipes 4 4. The circulation will ordinarily be through pipes 5 and 6 and so on to the radiator, the return-current being by way of pipe 12, and so through pipes 10 to the heating-pipes, or through the reservoir and so by pipes 8 to the heating-pipes; but when the valve 9 is closed a new circulation will take place through pipes 7 and 14 to the reservoir, and thence by pipe 8 to the heating-pipe. This gives a sufficient circulation to prevent overheating andalso secures an equalizing ofpressure because of the connection of the reservoir with all the heating-pipes.

For the illustration of a furnace provided with singlyeonnected heating-pipes, as in my said pending application-that is to say, having a single heating-pipe for each room or place in the'house, instead of several, and ap plying thereto the herein-described improved inlet-connections-reference may behad to Fig. 2, the pipe 4, its outlet-connection 6, con nected to the latter, and the pipes 7 and 8, also conneeted thereto and with the return-pipe l2 and reservoir, clearly showing said single-pipe improved connection.

What I claim as my invention is- 1. A furnace, a group of horizontal waterheating pipes therein, connections from each of these pipes to a single out1et-pipe and thence to radiators or similar heaters, a valve controlling said outlet-pipe, a single return-pipe connected to a reservoir and also to all the pipes of the group, and a connection from the reservoir to each of the pipes of the group,the elements combined substantially as described.

2. In a water-heating apparatus, a number of groups of heating-pipes in a furnace, connections from all the pipes of a group to asingle pipe and thence to a radiator system, a single return-pipe from the radiator having branches connecting with all the pipes of a group,and a reservoir connected with said return-pipe and all the heating-pipes of all the groups, all combined substantially as set forth.

3. The combination, in a hot-water-heating apparatus, of a plurality of pipes in a furnace constituting a group, a reservoir connected to the lower part of each of the pipes and to the radiators, substantially as described, and connections from the upper part of the heatingpipes to said reservoir,and also to radiators or.

other heaters, substantially as described.

EUGENE N. GATES. Witnesses:

G. M. CHAMBERLAIN, H. A. OHAPIN. 

